C07C 67/58
By liquid-liquid treatment
Official title: by liquid-liquid treatment
C07C67/58 (By liquid-liquid treatment) appears on 196 US grants and 179 published applications in this corpus.
Search patents in C07C- Granted patents
- 196
- Published applications
- 179
- Assignees
- 148
- Inventors
- 641
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 2 |
| 2003 | 1 | 4 |
| 2004 | 1 | 1 |
| 2005 | 2 | 5 |
| 2006 | 2 | 7 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 4 | 4 |
| 2010 | 3 | 3 |
| 2011 | 1 | 5 |
| 2012 | 2 | 1 |
| 2013 | 1 | 9 |
| 2014 | 6 | 6 |
| 2015 | 4 | 8 |
| 2016 | 9 | 14 |
| 2017 | 4 | 12 |
| 2018 | 7 | 16 |
| 2019 | 13 | 9 |
| 2020 | 11 | 10 |
| 2021 | 17 | 11 |
| 2022 | 5 | 13 |
| 2023 | 5 | 9 |
| 2024 | 6 | 11 |
| 2025 | 5 | 8 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for hydrogenation of phthalate compound30 Jun 2026US 12,668,565 B2Hanwha Solutions Corporation
- Industrial method for simultaneously preparing Stevia rebaudiana chlorogenic acid and stevioside9 Jun 2026US 12,649,758 B2Chenguang Biotech Group Co., Ltd.
- Process for producing biodiesel with reduced monoacylglycerol content19 May 2026US 12,630,774 B2Desmet Belgium
- Depolymerization catalyst of polymer comprising ester functional group, and depolymerization method using same21 Apr 2026US 12,606,689 B2Korea Research Institute of Chemical Technology
- Solvent drying solution and processes therfor17 Mar 2026US 12,577,185 B2Aquafortus Technologies Limited
- Compositions of and methods of making ultra-pure tricaprilin3 Sep 2026US 2026/0257983 A1Cerecin Australia Pty Limited
- (meth)acrylic acid ester production method6 Aug 2026US 2026/0225990 A1Nippon Shokubai Co., Ltd.
- Process for purifying bis(2-hydroxyethyl)tephthalate obtained from depolymerization of waste containing polyethylene terephthalate5 Feb 2026US 2026/0035333 A1Chempet Srl
- Continuous process for producing n-butyl (meth)acrylate with a catalyst recirculation system8 Jan 2026US 2026/0008742 A1BASF SE
- Process for producing polyunsaturated fatty acids in the form of esters8 Jan 2026US 2026/0008743 A1ENI S. p. A.
Most cited
By later US patents
- Separation of ethyl acetate from ethanol and water by extractive distillation156US 4,379,028 A1983
- Process for the separation of ethyl acetate from ethanol and water by extractive distillation84US 4,569,726 A1986
- Esterification and extraction process55US 4,082,788 AEl Paso Products Company · 1978
- Removal of organic iodine compounds from carbonylation products of methanol methyl acetate and dimethyl ether44US 4,908,477 ABASF SE · 1990
- Purifying polyunsaturated fatty acid glycerides40US 6,204,401 B1Norsk Hydro ASA · 2001